MPQ6523

– TRIPLE HALF-BRIDGE MOTOR DRIVER WITH SERIAL INPUT CONTROL

MPQ6523 Rev.1.01

www.MonolithicPower.com

13

9/5/2017

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© 2017 MPS. All Rights Reserved.

Table 2: Output Data Protocol

Bit

Input Register

Function

0

TP

Temperature pre-warning: high = warning (over-temperature shutdown see

remark below).

1

n. u.

Not used.

2

n. u.

Not used.

3

Status LS1

Normal operation: high = output is on, low = output is off. Open-load detection:

high = open load, low = no open load (correct load condition is detected if the

corresponding output is switched off).

4

Status HS1

Normal operation: high = output is on, low = output is off. Open-load detection:

high = open load, low = no open load (correct load condition is detected if the

corresponding output is switched off).

5

n. u.

Not used.

6

n. u.

Not used.

7

Status LS2

See LS1.

8

Status HS2

See HS1.

9

n. u.

Not used.

10

n. u.

Not used.

11

Status LS3

See LS1.

12

Status HS3

See HS1.

13

SCD

Short circuit detected. Set SCD high when at least one output is switched off by a

short-circuit condition.

14

EN

Enable. EN is controlled by software (bit SE in input register) and hardware

Enable (EN). Low = standby, high = normal operation.

15

PSF

Power supply fail. Under-voltage at VS detected.

NOTE: Bit0 to 15 = high: over-temperature shutdown.

Table 3: Status of the Input Register after Power-On Reset

Bit15

(SE)

Bit14

(SCT)

Bit13

(OLD)

Bit12

(HS3)

Bit11

(LS3)

Bit10

Bit9

Bit8

(HS2)

Bit7

(LS2)

Bit6

Bit5

Bit4

(HS1)

Bit3

(LS1)

Bit2

Bit1

Bit0

(SRR)

H

H

H

L

L

x

x

L

L

x

x

L

L

x

x

L